“The King2Hearts” previously known as “King 2Hearts,” tells the story of Korean prince Lee Jae Ha (Lee Seung Gi) and a North Korean officer Kim Hang Ah (Ha Ji Won) who received extensive training in the special forces. The two will eventually grow fond of each other and fall in love.

Actress Ha Ji Won reportedly lost 4 kg to fit in the officer uniform she is seen wearing on the poster. She also had to speak with and perfect a North Korean accent for the purpose of her role.

Watch the official teaser below and check out the stills from the drama.